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A SPECTROGRAPH PLATE SHIELD

 

作者: J. Tracy Lay,   I. Clyde Cornog,  

 

期刊: Review of Scientific Instruments  (AIP Available online 1931)
卷期: Volume 2, issue 5  

页码: 293-296

 

ISSN:0034-6748

 

年代: 1931

 

DOI:10.1063/1.1748791

 

出版商: AIP

 

数据来源: AIP

 

摘要:

A shield designed for use in a spectrograph to prevent pre‐exposure and subsequent exposure of the photographic plate due to scattered light when a number of spectra are photographed on the same plate or film. The use of such a shield eliminates consequent errors in the densities of spectral lines as determined by a densitometer.

 

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